
if (100 == 100) puts 'equality check passed'
if (100 == 99) puts 'equality check failed'

if (100 != 99) puts 'not-equal check passed'
if (100 != 100) puts 'not-equal check failed'

if (not 0) puts 'negate 0 check passed'
if (not 1) puts 'negate 1 check failed'
